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mic5219ym5-tr

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Microchip Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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MIC5219YM5-TR

Microchip · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

MIC5219YM5-TR from Microchip, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 IN power_in Supply input. Operating range +2.5V to +12V (absolute max -20V to +20V, reverse-battery protected). Bypass with a 1µF capacitor to GND if more than 10 inches of wire separates the input from the AC filter capacitor, or when driven from a battery.
2 GND power_in Ground return for the regulator. Carries the ground-pin current (typ. 20mA at 500mA load; ~0.05µA in shutdown).
3 EN input Enable/shutdown input, CMOS/TTL compatible. Logic high (VEN ≥ 2.0V) enables the regulator; logic low (VEN ≤ 0.4V) or open puts the part into shutdown (near-zero quiescent current). VEN range 0V to VIN. Tie to IN if the shutdown function is not used.
4 ADJ input Adjust (feedback) input for the adjustable-output variant (MIC5219YM5 / LGAA). Connect to the tap of an external R1/R2 resistor divider from OUT to GND; VOUT = 1.242V × (1 + R2/R1). High-impedance input; keep R2 ≤ 470kΩ for best performance. An optional 470pF cap from ADJ to GND reduces output noise.
5 OUT power_out Regulator output. 500mA peak current capability from SOT-23-5. Requires a minimum 1µF output capacitor to GND (2.2µF minimum when the noise-bypass capacitor is used; 22µF for output settings <3V) with ESR ≤ ~1Ω and self-resonance above 1MHz. Current-limited (typ. 700mA, max 1000mA into a short).

Key specifications

Parameter Value
Manufacturer Microchip
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

  • MIC5219YM5-TR
  • MIC5219YM5-TRBM5
  • MIC5219YM5-TRYMM
  • MIC5219YM5-TRBMM
  • MIC5219YM5-TRYML
  • MIC5219YM5-TRBML
  • MIC5219YM5-TRYMT

CAD (KiCad official)

  • Symbol: MIC5219YM5-TR
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: mic5219ym5-tr-etched.step / mic5219ym5-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mic5219ym5-tr.step / mic5219ym5-tr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Microchip datasheet (None pp, sha256 d708640d6774db2e, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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